diff --git a/pkg/proto/define.go b/pkg/proto/define.go
index e333d8b..271091f 100644
--- a/pkg/proto/define.go
+++ b/pkg/proto/define.go
@@ -1,5 +1,9 @@
 package proto
 
+import (
+	"google.golang.org/protobuf/types/known/timestamppb"
+)
+
 type GetKeyBaseInterface interface {
 	GetKey() *BaseKey
 }
@@ -7,3 +11,25 @@ type GetKeyBaseInterface interface {
 const (
 	BaseKeyMethodKey = "basekey"
 )
+
+// NewBaseKey
+// key，ttl，expire
+func NewBaseKey(key string, t ...int64) *BaseKey {
+	var expire *timestamppb.Timestamp
+	var ttl int64
+
+	if len(t) > 1 {
+		expire = &timestamppb.Timestamp{
+			Seconds: t[1],
+		}
+		ttl = t[0]
+	} else if len(t) == 1 {
+		ttl = t[0]
+	}
+
+	return &BaseKey{
+		Key:    key,
+		Expire: expire,
+		Ttl:    ttl,
+	}
+}